Answer: 19.6 % (approx)
Step-by-step explanation:
Since, the annual percentage rate (APR) is defined as,
[tex]APR=(1+\frac{i}{n})^n-1[/tex]
Where, i = Stated annual interest rate,
n = Number of periods,
Here, i = 18% = 0.18
n = 12 months,
[tex]\implies APR=(1+\frac{0.18}{12})^{12} - 1[/tex]
[tex]=(1+0.015)^{12}-1[/tex]
[tex]=1.19561817146-1[/tex]
[tex]=0.1956187146[/tex]
[tex]=19.56187146\% \approx 19.6\%[/tex]